Cloudflare and Fly are both reverse-proxy CDN services that handle caching and TLS at the edge. They also both support running arbitrary logic at the edge. Clou

Cloudflare and Fly are both reverse-proxy CDN services that handle caching and TLS at the edge. They also both support running arbitrary logic at the edge. Cloudflare has Workers (javascript web workers API) with their custom KV key/value persistent data layer. Fly started similar but now supports containers running anything and has a Redis non-persistent cache layer. If all you're doing is caching some endpoints and TLS termination then either will work. Cloudflare has a bigger network with robust security capabilities, Fly has more flexibility in application logic you can run. Data has gravity and having a globally distributed database layer is something companies have spent millions on. Usually the solution is to cache as much as possible in each region first, then look at doing database replicas, and eventually multi-regional active/active database scale-outs.